Grain-separator



w. WILMINGTON.

Grain Separator Patented Nov. 29, 1859.

WILLIAM WILMINGTON, or TOLEDO, oHIo.

GRAIN-SEPARATOR.

Specification of Letters Patent No. 26,316, dated November 29,1559. L i

To all whom it may concern:

Be it known that I, WILLIAM WILMING- TON, of Toledo, in the county of Lucas and State of Ohio, have invented a new and useful Improvement on a Machine for Separat ing Grain from Straw; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of the specification, in which- Figure one (1) is a perspective view, and Fig. two (2) is a plan.

Letter A, represents the main frame. B the threshing cylinder. C, fan blower. D endless belt or elevator, E, opening for grain to fall through on riddles or wind board. F, comb or fingers of sufficient size to admit the grainqthatmay be carried back by the action of the teeth on the end and lower side of the bars. G, bars with teeth projecting from the upper and lower side havingfa reciprocating motion imparted to them by the action of the double cranks. H, dividing board, to prevent the grain from being thrown upon the bars from the elevator. There may be a revolving beater placed between the elevator and the bars to liftthe straw from the elevator, but when it can be dispensed with, I prefer to do so.

Operation: The unthreshed grain and straw, having been fed to the threshing cylinder is discharged upon the endless belt or elevator and then carried onward by therevolving motion of the same and the straw is then thrown upon the reciprocating bars I and by them discharged from the machine. The grain that lies on the elevator or belt is carried back and discharged through the opening, E, upon the riddles orwind board. The grain remaining in the straw is, by the movement of the cranks andbars, separated from the straw, and falls between the spaces of the bars to the bottom board, and by the backward movements of the bars on the lower specified. H a y; 2. I claim the combination oftheteethon cranks is returned, and discharged through the openings of the comb, or; fingers and, falls upon theriddlesonwindboard. The

short straws, that mayfalhbetweenthe bars, if i f are prevented from fallingi upon the riddles or wind boardby the interposition ofthe I comb or fingers. Theprojectingteeth on i I the under side andiendjo ffthe barsprevent j the openings of the combflfrom "filling with straw or chafli. I

The object of the j I to prevent a returnofi the straw and chafl,

to the belt D, after it' has oncebeencarried 1 up by said belt and sdepositedupon thebars I. I. 160 v; y y ar [j ceived by the bars G, maybe workedbaokfl G. Although a portioii of the straw; or: chaff which falls through] after bein toward the belt by means of the teeth on the underside of the bars, said straw orchafiis I i prevented from coming in} contact with the. belt by means of the board H, as is clearly; seen. The straw after passing backtothe 1 3 board, and over the openings F, is raised up and carried away on top 0 the bars G.

. I do not claimthecranks,andbars nor. do I claim the endless beltor elevator, but}; What I do claim, anddesire to secure by:

Letters Patent l. The combination ofthelendless belt i the dividing board H, andtherotary reciprocating bars G, the beltrbeing separated from the bars by meansof the board H, and used for delivering the straw and ,unsepae y rated grain to the barsat itsturningpointfl for the purpose herein substantially as and the underside and endfof the bars, with the fingers or comb for the purpose hereinbefore described.

Witnesses: y FRANKLIN E. CARD, JOHN L. JoHNsoN;

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